Vocabulary
enriched Term used for an ingredient that has been processed; ingredients are enriched
with added nutrients to replace those lost during processing; likely to have fewer nu-
trients than unprocessed ingredients.
ingredient A specific item that a food contains.
main ingredient The ingredient that is present in the food in the greatest amount.
MyPyramid Diagram that shows how much you should eat each day of foods from six
different food groups.
nutrition facts label The label on packaged food that shows the nutrients in the food.
obesity Having a very high percentage of body fat; obese people are at least 20 percent
heavier than their healthy weight range.
serving size Tells you how much of the food you should eat to get the nutrients listed on
the label.
Points to Consider
- Discuss how foods may be broken down into nutrients that your body can use? For
example, how do you think an apple becomes simple sugars that your body can use
for energy? Or how might a piece of cheese become proteins that your body can use
for building materials?
17.3 Lesson 17.3: The Digestive System
Lesson Objectives
- State the functions of the digestive system.
- Explain the role of enzymes in digestion.
- Describe the digestive organs and their functions.
- Explain the roles of helpful bacteria in the digestive system.
- List ways to help keep your digestive system healthy.